Datasheet > LTC3887IUJ#PBF

LTC3887IUJ#PBF

更新时间： 2024-01-04 18:25:30

品牌	Logo	应用领域
凌特 - Linear		/
页数	文件大小	规格书
114页	2274K
描述
LTC3887/LTC3887-1 - Dual Output PolyPhase Step-Down DC/DC Controller with Digital Power System Management; Package: QFN; Pins: 40; Temperature Range: -40°C to 85°C

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技术参数
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LTC3887IUJ#PBF 技术参数

是否Rohs认证：	符合	生命周期：	Active
零件包装代码：	QFN	包装说明：	6 X 6 MM, LEAD FREE, PLASTIC, QFN-40
针数：	40	Reach Compliance Code：	compliant
风险等级：	5.6	Base Number Matches：	1

LTC3887IUJ#PBF 数据手册

LTC3887/LTC3887-1/

LTC3887-2

Dual Output PolyPhase

Step-Down DC/DC Controller with

Digital Power System Management

DESCRIPTION

FEATURES

The LTC^®3887/LTC3887-1 are dual, PolyPhase DC/DC

PMBus/I C Compliant Serial Interface

Telemetry Read Back includes V , I , V , I

synchronous step-down switching regulator controllers

IN IN OUT OUT

Temperature, Duty Cycle and Faults

with an I C-based PMBus compliant serial interface. The

Programmable Voltage, Current Limit, Digital

Soft-Start/Stop, Sequencing, Margining, OV/UV

controllers use a constant frequency, current mode ar-

chitecture that is supported by LTpowerPlay^®a software

development tool with graphical user interface (GUI).

and Frequency Synchronization (250kHz to 1MHz)

0ꢀ5ꢁ Output Voltage Accuracy Over Temperature

Switching frequency, channel phasing, output voltage,

and device address can be programmed using external

configuration resistors. Additionally, parameters can be

set via the digital interface or stored in EEPROM. Voltage,

current, internal/external temperature and fault status can

be read back through the bus interface.

Integrated 16-Bit ADC

Range: 0ꢀ5V to 5ꢀ5V (V

, V

)

OUT

OUT0 OUT1

Internal EEPROM and Fault Logging with ECC

Integrated N-Channel MOSFET Gate Drivers (LTC3887)

Minimum On-Time 45ns

Wide V Range: 4.5V to 24V

Analog Current Mode Control Loop

The LTC3887 has integrated gate drivers. The LTC3887-1

has three-state PWM pins to drive DrMOS power stages.

The LTC3887-2 has gate drivers and no LDO and supports

Remote Differential Sense for PolyPhase^®Applications

Accurate PolyPhase Current Sharing for Up to Six Phases

Available in a 40-Pin (6mm × 6mm) QFN Package

V up to 34V. The LTC3887 is an enhanced version of the

LTC3880withgreateroutputvoltagerangeandmoredigital

features. Refer to page 15 for more detail.

All registered trademarks and trademarks are the property of their respective owners. Protected

by U.S. Patents including 5481178, 5705919, 5929620, 6144194, 6177787, 6580258, 5408150,

7420359. Licensed under U.S. Patent 7000125 and other related patents worldwide.

APPLICATIONS

High Current Distributed Power Systems

Telecom, Datacom and Storage Systems

Intelligent Energy Efficient Power Regulation

TYPICAL APPLICATION

Dual 350kHz 3ꢀ3V/0ꢀ5V Step-Down Converter

ꢀ

ꢁꢂ

Regulated Output Voltage vs

Temperature, V_OUT= 0ꢀ5V

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Rev E

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与LTC3887IUJ#PBF相关器件

型号	品牌	获取价格	描述	数据表
LTC3888	ADI	获取价格	Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
LTC3888-1	ADI	获取价格	Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
LTC3888-2	ADI	获取价格	Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
LTC3889	ADI	获取价格	Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
LTC3890	Linear Systems	获取价格	60V Low IQ, Dual, 2-Phase Synchronous Step-Down
LTC3890	Linear	获取价格	60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
LTC3890	ADI	获取价格	60V 低 IQ双输出 2 相同步降压型 DC/DC 控制器
LTC3890_12	Linear Systems	获取价格	60V Low IQ, Dual, 2-Phase Synchronous Step-Down
LTC3890-1	Linear	获取价格	60V Low IQ, Dual, 2-Phase Synchronous Step-Down DC/DC Controller
LTC3890-1	ADI	获取价格	60V、低 IQ、双通道、两相、同步降压型 DC/DC 控制器

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